Cheapest one-way flights from Chicago to Seoul in April from $503

Best time to book flights for Chicago (ORD) to Seoul (ICN) flights at AirHint

AirHint found the following cheapest one-way flights from Chicago (ORD) to Seoul (ICN) in April 2025 (see full year).

One-Way flights

06 Apr American Airlines
02 Apr American Airlines
30 Apr American Airlines
28 Apr American Airlines
29 Apr American Airlines
23 Apr Turkish Airlines
17 Apr Turkish Airlines
18 Apr Turkish Airlines
16 Apr Frontier Airlines
30 Apr Korean Air direct

Also check the deals for return flights from Chicago to Seoul in April.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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